No code completion and verification in inherited jsf managed bean with generic typed property:

public abstract class AbstractController<T extends EntityBase, F extends AbstractFacade<T>> implements Serializable {

    private LazyDataModel<T> model;

    public AbstractController() {
        model = new LazyDataModel<T>() {

            @Override
            public List<T> load(int first, int pageSize, String sortField, org.primefaces.model.SortOrder sortOrder, Map<String, String> filters) {
                setRowCount(getFacade().count());
                return getFacade().findRange(new int[]{first, first + pageSize});
            }

            @Override
            public Object getRowKey(T object) {
                return object.getId();
            }

            @Override
            public T getRowData(String rowKey) {
                return getFacade().find(Long.parseLong(rowKey));
            }
        };
    }

    public LazyDataModel<T> getModel() {
        return model;
    }

    protected abstract F getFacade();
}

@ManagedBean
@SessionScoped
public class UserController extends AbstractController<User, UserFacade> {

    @EJB
    private UserFacade userFacade;
    private User currentItem;

    public UserController() {
    }

    @Override
    protected UserFacade getFacade() {
        return userFacade;
    }

    public User getCurrentItem() {
        if (currentItem == null) {
            currentItem = new User();
        }
        return currentItem;
    }

    public void setCurrentItem(User currentUser) {
        this.currentItem = currentUser;
    }

    public void save() {
        userFacade.edit(currentItem);
    }
}

<p:dataTable id="list" value="#{userController.model}" var="user" selection="#{userController.currentItem}" selectionMode="single" rows="10">
                <p:column headerText="Id">
                    <h:outputText value="#{user.}"/>
                </p:column>
                <p:column headerText="Username">
                    <h:outputText value="#{user.username}"/>
                </p:column>
                <p:column headerText="Password">
                    <h:outputText value="#{user.password}"/>
                </p:column>
            </p:dataTable>